Characteristics of constant pressure water supply inverter
1. Power saving
The most significant advantages of variable frequency constant pressure water supply system It is to save electricity, and the energy saving is usually 10-40%. From the perspective of energy saving of a single water pump, the smaller the flow rate, the greater the energy saving. Optimized energy-saving control software enables the water pump to achieve maximum energy-saving operation.
2. Reliable operation
The variable frequency constant pressure water supply system achieves stable and stable water supply pressure in the system. The flow rate can be continuously changed in a wide range, thus ensuring the user’s water pressure at any time, and there will be no situation where the water heater cannot be used normally during the peak period of water use. The frequency converter realizes the soft start of the pump, so that the water pump can realize the switching from power frequency to variable frequency. Impact-free switching prevents impact on the pipe network, excessive pipe network pressure, and pipe rupture.
3. Flexible control
Sectional water supply, regular water supply, and manual selection of working methods.
4. Sanitation and water saving
Set the pipe network pressure according to the actual water use situation, automatically control the water output of the water pump, and reduce the phenomenon of water running and leaking ; After the system implements closed-loop water supply, all users’ water will be directly supplied by pipelines, and facilities such as water towers, sky pools, and pressure tanks will be eliminated, thereby avoiding “secondary pollution” of water and eliminating the need for regular cleaning of pools.
5. Perfect self-protection function
The new residential variable frequency constant pressure water supply system has overcurrent, overvoltage, undervoltage, phase loss and short circuit protection Protection, instantaneous power failure protection, overload, stall protection, etc.
Constant pressure water supply inverter parameter setting
Pr033 starting command source (Pr033=0 panel, 1 terminal)
Pr034= 0 Operating frequency source 0: Operator (Note: This parameter for PID constant voltage control is required to be 0) Pr052=32 PID start terminal -Pr152 (use the factory setting value first, no need to change when the water supply pressure is constant) Pr153 target value (this parameter is set as the target pressure, the value is based on the percentage of the remote pressure gauge rangeComparison) Pr154-Pr156 (see page 22 of the manual for details) The J1 pin jumper should be at the position 1-AI. The remote pressure gauge signal terminals are: +10V, AI, GND, and the center line is AI.
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